JEE Main 2022 · 29 July · evening · Single correct · +4 / −1

Octahedral complexes of copper(II) undergo structural distortion (Jahn-Teller). Which one of the given copper (II) complexes will show the maximum structural distortion? (en - ethylenediamine; H₂ N₋ CH₂-CH₂-NH₂)

  1. (a) [Cu(H₂ O)₆] SO₄
  2. (b) [Cu(en)(H₂ O)₄] SO₄
  3. (c) cis-[Cu(en)₂ Cl₂]
  4. (d) trans-[Cu(en)₂ Cl₂]
Answer and solution

Answer (a) [Cu(H₂ O)₆] SO₄

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Study Coordination Compounds

Asked about 250 times in JEE Main since 2020. This question is from 2022.